Input/Output Requirement in Cloud Based Server Loading

[trialwin]

Do you have any guidelines on how well eValid does in terms of input/output capacity when you are running 100's of copies in the cloud? We are using the Amazon EC2 system, but the answer would apply anywhere, right?

[eValid]

Do you have any guidelines on how well eValid does in terms of input/output capacity when you are running 100's of copies in the cloud? We are using the Amazon EC2 system, but the answer would apply anywhere, right?

We too are running PerformanceTest project and some monitoring processes in the Amazon EC2 system so we have some experience with this.

As you know, EC2 can be daunting and complex, but it appears that individual instances have about 1 Gbps (Gigabit/second) input/output capacity. In our PerformanceTest situations, where we are running 100's or 1000's of eValid instances as Browser Users (BU's) we generally do not hit any input/output capacity limits, but instead hit RAM limits first.

In monitoring applications we find that the CPU load and the I/O load from even a VERY complex e-commerce or RIA monitoring script playback is very small. These kinds of tests don't seem to dent the performance at all.

But let us know what YOU have found, please?

The eValid Team